Question

Which of the b values are solutions to the following equation? b^2 = 2.56

Answer 1

b = - 1.6 or b = 1.6

Explanation:

`b^2=2.56\quad\iff\quad b=\pm√(2.56)\\\\\pm√(2.56)=\pm√(256:100)=\pm(√(256):√(100)\,)=\pm(16:10)=\pm1,6`

Answer 2

Answer:all of the above

Step-by-step explanation:on khan